Electronic calculator



FIG. 1 is a front, right side, top perspective view of an electronic calculator showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for an electronic calculator, as shown and described. 